The Effect of Aestivation on Sexual Maturation in the Female Alfalfa Weevil (Hypera postica)1

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The development of sex organs in female alfalfa weevils (Hypera postica (Gyllential)) during aestivation was studied. Females were dissected at monthly intervals to study the progressive stages of sexual maturation. Weevils that emerged from cocoons in way entered into an apparent diapause stage until October. Morphological growth of the female sex organs was considerably arrested during diapause, and sexual maturity was not reached until November 23. Adults which emerged in September did not diapause and the females also attained sexual maturity on November 23. Diapausing weevils required 6 months to mature whereas nondiapausing weevils reached maturity 81 days after emerging from cocoons.

Document Type: Research Article

Publication date: October 1, 1962

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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